A method for removal of N-BOC protecting groups from substrates on TFA-sensitive resins
作者:Alex J Zhang、David H Russell、Jieping zhu、Kevin Burgess
DOI:10.1016/s0040-4039(98)01631-1
日期:1998.10
N-Tert-butyloxycarbonyl groups can be removed from substrates supported on Rink's amide resin by treatment with trimethylsilyl triflate/2,6-lutidine. This methodology was illustrated here with syntheses of several peptides, but it is likely to be used more extensively in solid phase syntheses of small molecule libraries.
[EN] A novel class of peptide nucleic acids are described which include a conjugate attached thereto. The peptide nucleic acids generally comprise ligands such as naturally occurring DNA bases attached to a peptide backbone through a suitable linker. [FR] Cette invention se rapporte à un nouvelle classe d'acides nucléiques peptidiques, qui contiennent un conjugué fixé à eux. Ces acides nucléiques peptidiques comprennent généralement des ligands tels que des bases d'ADN existant à l'état naturel, qui sont fixées à un squelette peptidique par un segment de liaison approprié.
ANTHRACYCLINS AND CONJUGATES THEREOF
申请人:[en]SYNAFFIX B.V.
公开号:WO2024038065A1
公开(公告)日:2024-02-22
The invention concerns analogues of nemorubicin as well as PNU-159,682 with a range of substituents other than 2"-0Me on the morpholino ring that beneficially affected the toxicity of the toxin over the molecules with the 2"-0Me group. In addition, it was found that PNU variants with modified 2"-O-alkyl chain show enhanced tolerability in vivo. Thus, by modification of the 2"-O-alkyl group, ADCs were generated with carefully tailored potency and tolerability to improve the administered dose in patients. The invention thus concerns compounds according to structure (1) and conjugates therewith, as well as pharmaceutical compositions and methods of targeting tumour cells and treating cancer.